John d



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J. D. BROOKS.

Surface Condenser. l

Ne. 237,674. Patented Feb. 15,1881.

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y llnirrnn STATES PATENT Ormea.;

JOHN D. BROOKS, OF JERSEY CITY, NEW JERSEY.

SUYRFACE-CONDENSER.

SPECIFICATION forming part of Letters Patent No. 237,674; dated February15, 1,881.

Application filed April 1, 1880.

To all whom it may concern:

Be it known that I, JOHN D. BROOKS, of Jersey City, Hudson county, NewJersey, have invented certain new and useful Improvements inSurface-Condensers, of which the following is a specification.

My invention aims to provide a surface-condenser, more especially7 formarine-engines, which will provide a large condensing-surface within asmall space, and at the same time embody a simple and accessibleconstruction. To this end my condenser is constructed wit-h a concentricseries of narrow steam-condensing spaces, each space being of annularcorrugated form in cross-section, with intervening cold-water spaces ofsimilar form, as hereinafter fully set forth.

Figure 1 of the annexed drawings gives a longitudinal section ofmyimproved condenser,

and Fig. 2 a cross-section thereof.

As illustrated, a indicates the external casing of the condenser, whichmay be of castiron or boiler-iron, and is preferably ot cylindrical formwith removable heads b b, as shown. The sea-water is admitted to thiscasing by the inlet c at one end thereof, and after circulating throughthe same, as usual, discharges by the outlet l at the other end. Now,the steam is admitted to and condensed in a series of narrow annularspaces, d d, which are of corrugated or wavy conformation throughouttheir circumference, like the outline of a coarse cog-wheel, as seenbest in Fig. 2, and these annular corrugated spaces are arranged Vinconcentric series, one within the other, with intervening spaces e ofcorresponding form to admit the circulation or passage of the coldsea-water in contact with the corrugated walls of the narrow annularsteam-spaces d.

I prefer to use three concentric steam-spaces of the kind described; butI have shown but two in the drawings for simplicity of illustration, butonly one of the same may be used if preferred.

This form of condensing-chamber, aswill be observed, obtains a veryextended condensingsurface within a compact space, and exposes the steamin a narrow and extended sheet or mass to close proximity withacorrespondin glyextended mass of cold water. The walls of thesteam-spaces are formed of two large and (No model.)

long corrugated tubes or cylinders, of thin oopper or brass, the ends ofwhich are soldered or brazed to a metal ring, f, of nearly similarcorrugated shape. (Seen best in Fig. 2.) These rings, with theirattached steam-chambers, are bolted at each end, in a concentricarrangement, to perforated heads g g, having openings h between thesteam-chambers to admit the free circulation of the cold water incontact therewith, as shown in Figs. l .and 2. The series or group ofsteam-chambers is much smaller than the inclosing water-cham ber a, soas to leave a circumferential water-space around the former; and theperforated heads g g have four radial projections or feet, m, which restin loose contact with the interior of the waterchamber, and support thesteam-chambers centrally therein, yet in such manner that thesteam-chambers may be easily removed when the head of the water-chambera is taken on, thus rendering the internal parts accessible forexamination or repair.

The steam is admitted to the top of the steamcondensing chambers by thepipe i, which branches into three minor pipes, each going to a distinctchamber, while a distinct pipe, lc. also extends from the bottom of eachchamber and connects to a main pipe, lc', by which th water ofcondensation is carried off.

It will be observed from Fig. 2 that the outer walls of eachsteam-chamber is bowedfwith an additional outward corrugation where thesteam and water pipes i k connect, thus obtaining sufcient space toconnect such pipe while leaving the remainder of the chamber quitenarrow, as is desirable.

By the described construction, as may be now observed, the formationofthe condenser is rendered simple, its parts are accessible, whendesired, and at the same time its condensing power is quick andeffective.

What I claim as my invention isl. A surface-condenser formed with aninclosing cold-water chamber, in combination with an internalsteam-condensing chamber of annular sinuous form in cross-section,substantially as herein shown and described.

42. A surface-condenser constructed with an inclosing cold-waterchamber, in combination with a series of steam-condensing chambers ofannular sinuous form in cross-section, arranged IOO conoentrically onewithin the other, with interber a, with removable head or heads b, withvening cold-water spaces between the same of the internal removableoondens11g-Chambers,

annular snuous form in erossseotions, substantially as herein shown anddescribed.

3. In a surfaoe-co11denser, the combination of the steam-chambers d d,annular in crosssections, the supporting end ringsJf, perforated heads gg, and inelosing-chamber a, subn stautia-lly as and for the purpose sebforth.

4. The combination of the inolosing-cham consisting of the chambers d d,annular' in cross-sections, the supporting end ringsf, and perforatedheads g g, substantlally as herein 15 specified.

JOHN D. BROOKS.

Witnesses:

EDWARD H. WALES, OHAS. M'. HIGGINS.

